# Grade Vision AI vs Centering50

The clearest difference is rating: Centering50 at 4.5 against Grade Vision AI's 1.0. Centering50 also leads on monetization model (free with in-app purchases vs subscription) and ratings volume (26 vs 1). Grade Vision AI's advantage is ads (none vs shown). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Grade Vision AI sells 2 in-app purchases, starting at $14.99 per month and Centering50 sells 3 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

Centering50 holds the better App Store score, 4.5 against 1.0. That said, the two scores are not equally well evidenced: Centering50 has 26 ratings behind it against 1, so its average is the more settled of the two.

## The numbers

| Metric | Grade Vision AI | Centering50 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (1 ratings)](https://appshunter.io/ios/app/grade-vision-ai/id6749073634/reviews) | **[4.5 (26 ratings)](https://appshunter.io/ios/app/centering50-card-grading-tool/id6759667301/reviews)** |
| Number of ratings | 1 | **26** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | — | Every 8 days |
| Monetization | Subscription | **Free with in-app purchases** |
| Size | 5 MB | 155 MB |
| Requires iOS | 18.5 | **16.2** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 9+ | 17+ |
| Developer | [HANI ALI ABBAS SYED](https://appshunter.io/developer/1828690221) | [FUK WAI LI](https://appshunter.io/developer/1880074668) |

## What reviewers say

### Grade Vision AI

[App page](https://appshunter.io/ios/app/grade-vision-ai/id6749073634)

Instantly grade your trading cards with AI. Simply snap photos of the front and back of your cards, and receive a detailed analysis of their condition, centering, corners, edges, and surface in seconds. Ideal for collectors and sellers seeking quick, reliable card insights.

**Highlights:** Instant AI grading for all trading cards, Front/back image upload with detailed analysis, Grading confidence score and condition notes, Share results instantly, Supports sports and TCG cards

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Grade Vision Monthly | $14.99 | per month |
| Grade Vision Yearly | $124.99 | per year |


### Centering50

[App page](https://appshunter.io/ios/app/centering50-card-grading-tool/id6759667301)

This tool helps collectors accurately measure card centering ratios for TCG and sports cards. It uses AI-assisted scanning and manual guides to provide precise measurements, helping users predict grades and save on submission fees.

**Highlights:** AI-assisted border detection, Manual measurement guides, Front and back analysis, 15x precision zoom, Grading standard library, Dynamic contrast adjustment

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited Monthly | $4.99 | per month |
| Unlimited Yearly | $24.99 | per year |
| Full Version Lifetime Access | $49.99 | one-time |


## Frequently asked questions

### Is Grade Vision AI free?

Grade Vision AI is free to download, with in-app purchases available.

### Is Centering50 free?

Centering50 is free to download, with in-app purchases available.

### Which has better reviews, Grade Vision AI or Centering50?

Centering50 is rated higher. Grade Vision AI averages 1.0 out of 5 from 1 ratings, while Centering50 averages 4.5 from 26 ratings.

### Do Grade Vision AI or Centering50 have ads?

Centering50 shows ads; Grade Vision AI does not.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*